<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <link rel="stylesheet" href="//unpkg.com/layui@2.6.8/dist/css/layui.css">
  <!-- 引入 layui.js -->
  <script src="//unpkg.com/layui@2.6.8/dist/layui.js"></script>
  <script type="text/javascript" src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>
  <script src="js/name.js"></script>
</head>
<body>
<table data-role="table" data-mode="columntoggle" class="ui-responsive">
  <colgroup>
    <col width="150">
    <col width="200">
    <col>
  </colgroup>
  <thead>
  <tr>
    <td>学号</td>
    <td>姓名</td>
    <td>座位号</td>
  </tr>
  </thead>
  <tbody>
  <tr>
    <td></td>
    <td></td>
    <td></td>
  </tr>
  </tbody>
<div id="sum"></div>
</table>
</body>
</html>